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请问板载WiFi的电源要如何断电,就像LCD屏幕可以熄屏那样

Question asked by 培彬 杨 on Jan 16, 2019
Latest reply on Jan 21, 2019 by jimmychan

我查了开发板的原理图,lcd和wifi的电源都是通过74hc595来控制电源的,lcd可以通过指令echo "4" > /sys/class/graphics/fb0/blank来熄屏,但是wifi就找不到相关信息

请问如何断电或者lcd屏幕是如何断电,在哪些代码文件里面有提到?谢谢

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